JPH09117445A - Medical x-ray system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve reliability and safety in communication, in the system provided with a control means in which two or more constituting elements are each equipped with an optical communication means, by providing an alarm means for alarming a communication trouble in the optical communication. SOLUTION: In the operation of an X-ray system, a general control device 120 receives an optical signal from each console at a light transmitting/receiving part 124 and inputs it in a control unit 121, sending data through optical signals for imparting a prescribed action to a controller 54 of a supporting device 7, a controller 78 of a carriage 5, a controller 100 of a bed 3 and a controller 86 of a high voltage generator 14. In addition, a control unit 48 controls the position and direction of I. I. 6 based on output signals from limit sensors 36, 40, 44 and origin detecting sensors 38, 42, 46. In this case, the communication state is checked for each control unit 48, 102, 121 and, in case of a communication fault, a buzzer 113 is sounded to stop further operations.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical X-ray apparatus for diagnosing and treating a subject, and more particularly, to an apparatus capable of transmitting data such as control data between constituent elements of the apparatus by optical communication. The present invention relates to a medical X-ray apparatus that appropriately copes with a communication failure and improves communication reliability and safety.

[0002]

2. Description of the Related Art A medical X-ray apparatus represented by an X-ray fluoroscope or a circulatory organ X-ray apparatus is indispensable in the field of diagnosis. Accompanying this, various functions are required for the device. Therefore, the device configuration becomes complicated and large-scale, and there are problems that operability is deteriorated, cost is increased, and reliability is reduced.

Recently, medical X-ray apparatuses are often used not only for diagnosis but also for treatment. This treatment is X
Under fluoroscopy, for example, by inserting a catheter with various instruments attached to the tip into the blood vessel of the subject,
Compared with the conventional treatment by surgical laparotomy, it has a great merit that it can reduce the pain to the subject and the treatment can be carried out at low cost, and thus it is rapidly spreading. Such a treatment method is based on IVR (Interven
tional Radiology). In this IVR, the operator not only has a high function but also needs to be small and simple because the operator stands near the subject lying on the bed of the device, and the surroundings of the device structure are desired. There must be no obstacle for the surgeon, operator or assistant to walk around.

In order to meet such demands, a medical X-ray apparatus as shown in FIG. 5 has been considered. This is proposed as a medical X-ray device suitable not only for diagnosis but also for IVR, and an X-ray tube 4 which is an X-ray irradiating means is supported by a carriage 5 which runs on the floor and is an image receiving means II.
A television camera (hereinafter simply referred to as II) 6 is supported by a supporting device 7 from a ceiling 8. In the conventional circulatory X-ray device, the X-ray tube and II are connected and supported by an arcuate arm, but in the device shown in FIG.
6 is mechanically separated. Therefore, there is no obstacle around the top plate 2 on which the subject (not shown) lies down, and the subject can be approached from any direction.
Is located below the subject, so that the X-ray exposure of the operator or the like can be reduced, which is very convenient for performing IVR.

Although not described in detail, the X-ray tube 4
The support device 7 for supporting the carriage 5 and II 6 supporting the ceiling from the ceiling 8 operates so as to always face each other with the subject lying on the top plate 2 of the bed 3 interposed therebetween, and the bed leg for supporting the top plate 2. The unit is configured to move up and down and move in the longitudinal direction of the top plate 2 (the body axis direction of the subject). Such an operation is performed by an actuator (not shown), and control data of each is obtained by an X-ray control device (high voltage generation means and high voltage control means) for applying a high voltage to the X-ray tube 4.
A cable (not shown) including an operation console that has a switch and receives instructions from an operator, an image processing device (not shown) that transfers image processing data to a display that displays a fluoroscopic image of the subject, and the like. Sent.

However, the number of these cables exceeds several tens to more than 100, which is an obstacle to the work for diagnosis and IVR. Therefore, a medical X-ray apparatus has been proposed in which various types of data are transmitted by optical communication instead of those cables. According to this, since there is no cable for transmitting data such as control data, diagnosis and treatment are not disturbed, and device malfunction due to electromagnetic noise caused by signals flowing through the cable can be eliminated.

[0007]

However, in the medical X-ray apparatus shown in FIG. 5, as can be seen from the figure, the X-ray tubes 4, II
The bed 6 and the bed 3 are movable to various positions, and a contrast agent injector, an electrocardiograph, etc. (not shown) are placed around the bed 6 and the bed 3, and these are the data carrier for optical communication. It often blocked light and caused communication failures. Therefore, it has been proposed to attach a plurality of sets of transmitters / receivers for optical communication at different positions to enable transmitters / receivers in different directions to reduce communication obstacles. It is impossible not to cause the phenomenon completely. On the other hand, since the malfunction of the medical X-ray apparatus affects the life of the subject, in the case of the medical X-ray apparatus used also in the medical treatment, it is necessary to have higher reliability and safety than the apparatus used only for diagnosis. However, conventionally, improvement in this respect has been demanded.

It is an object of the present invention that when a communication failure occurs, it can be immediately recognized by an operator, an operator, an assistant, or the like, or communication data can be interpolated, and reliability,
An object of the present invention is to provide a medical X-ray device capable of improving safety.

[0009]

[Means for Solving the Problems] The object is to lay a bed on which a subject lies down, X-ray irradiating means for irradiating the subject with X-rays, and converting X-rays transmitted through the subject into electric signals. Image receiving means, a supporting device for integrally or separately supporting the X-ray irradiating means and the image receiving means, a high voltage generating means for supplying power to the X-ray irradiating means, and a high voltage for controlling the high voltage generating means. A control unit, a display unit for displaying an electric signal based on the transmitted X-ray as an image, and one or more operating devices for operating the operation of each of the constituent elements, and two of the respective constituent elements. In a medical X-ray apparatus having at least one control means having an optical communication means, it is achieved by providing a communication failure occurrence notification means for notifying the communication failure in the optical communication by the optical communication means. It

Further, a bed for lying the subject, X-ray irradiating means for irradiating the subject with X-rays, image receiving means for converting the X-rays transmitted through the subject into an electric signal, and the X
A supporting device that integrally or separately supports the radiation irradiating means and the image receiving means, a high voltage generating means that supplies power to the X-ray irradiating means, a high voltage control means that controls the high voltage generating means, and the transmission. Two of the constituent elements are provided, which include display means for displaying an electric signal based on X-rays as an image, and one or more operating devices for operating the operation of the constituent elements.
Medical X having at least one control means having optical communication means
In the line device, when the communication failure occurs in the optical communication by the optical communication means, the communication data interpolation means is provided to interpolate the communication data when the communication failure occurs within a predetermined time.

A suitable example of the communication failure occurrence notification means is means for generating at least one of sound and light. Further, it is also effective to achieve the above object that the communication failure occurrence component name display means for displaying the device failure element name in which the communication failure has occurred is provided in the communication failure occurrence notification means.

The communication failure occurrence notifying means notifies when a communication failure occurs in the optical communication by the optical communication means.
As a result, the operator, the operator, the assistant, or the like can immediately recognize the occurrence of the communication failure when the communication failure occurs, and the reliability and safety are improved.

The communication data interpolating means interpolates the communication data when a communication failure occurs in the optical communication by the optical communication means and the communication failure occurs within a predetermined time. As a result, even if a communication failure occurs, data communication can be continued without trouble within a predetermined time (short time), and reliability and safety are improved.

BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a main part, mainly a control system part, of an embodiment of a medical X-ray apparatus according to the present invention.
In FIG. 1, 1 is a subject and 2 is a top plate. The X-ray tube 4 irradiates the subject 1 lying on the top plate 2 with X-rays, and the transmitted X-rays of the subject 1 are incident on II6 at the facing position.

II6 is supported by the supporting device 7 shown in FIG. The support device 7 has a mechanism (not shown) for moving the II 6, and the actuators 30, 32, 34 and the limit sensor 3 included in the support device control unit 54.
6, 40, 44 and origin detection sensors 38, 42, 46. The actuators 30, 32, 3
A motor is generally used as 4. This means
The same applies not only to the actuators 30, 32, and 34 but also to each actuator described later. Limit sensor 3
Reference numerals 6, 40 and 44 are provided so as not to exceed the movable range, and the origin detection sensors 38, 42 and 46 are for determining the initial positions of the actuators (motors) 30, 32 and 34 when the power is turned on. Is. These actuators 30, 32, 34 and limit sensors 36, 40, 44
Is connected to the control unit 48, and the control unit 48 is further connected to the sending / receiving unit 50 having the sending / receiving unit 52 connected to the output side. As a result, the transmitter / receiver unit 5
When a predetermined optical signal is input to 2, the optical signal is transmitted / received by the transmitter / receiver 5
It is converted into an electric signal by 0, and the control unit 48 drives the actuators 30, 32 and 34 based on the electric signal.

The X-ray tube 4 is supported by the carriage 5 shown in FIG. The carriage 5 has a mechanism (not shown) for moving the X-ray tube 4, and is driven by actuators 60, 62 and limit sensors 64, 66, 68, 70 included in the carriage controller 78. These actuators 60, 62 and limit sensors 64,
66, 68, and 70 are connected to a control unit 72, and further to this control unit 72, a transmission / reception unit 74 having a transmission / reception unit 76 connected to the output side is connected. As a result, when a predetermined optical signal enters the transmitting / receiving unit 76, the optical signal is converted into an electric signal by the transmitting / receiving unit 74, and the control unit 72 causes the actuator 6 to operate based on the electric signal.
Drives 0 and 62.

The top plate 2 is supported by the bed 3 shown in FIG. The bed 3 has a mechanism (not shown) for moving the top plate 2, and is driven by an actuator 88 and limit sensors 90, 92 included in the bed controller 100. The actuator 88 and the limit sensors 90 and 92 are connected to a control unit 94, and the control unit 94 is further connected to a transmission / reception unit 96 having a transmission / reception unit 98 connected to the output side. As a result, when a predetermined optical signal enters the transmitting / receiving unit 98, the optical signal is converted into an electric signal by the transmitting / receiving unit 96, and the control unit 94 causes the actuator 88 based on the electric signal.
Drive.

The high voltage generator 14 for applying a high voltage to the X-ray tube 4 is controlled by a high voltage controller 86. The control unit 80 included therein has a transmitter / receiver on the output side. The transmitter / receiver 82 to which 84 is connected is connected. That is, when a predetermined optical signal enters the transmitting / receiving unit 84, the transmitting / receiving unit 82 converts the optical signal into an electric signal,
The high voltage applied to the X-ray tube 4 is controlled.

A console (not shown in FIG. 5) not shown has a console control unit 118, and the console control unit 118 has switches 104, 106, 108, 110,
A display unit (for example, a liquid crystal display, an EL display, etc.) 112, a buzzer 113, and a transmitter / receiver unit 11 for the output side.
The transmission / reception unit 114 to which 6 is connected, and the control unit 102 to which these are connected. As a result, when an operator or the like operates the switches 104, 106, 108, 110, the control unit 102 and the transmitter / receiver 114 operate, and the operation data is converted into an optical signal by the transmitter / receiver 116 and emitted. .

Generally, the operator console is placed outside the photographing room and the device is controlled by remote control. In addition to this operator console, a small and simple one is also arranged in the photographing room where the device is placed. Such a console is called a proximity console, and this proximity console has a proximity console controller 140, and this proximity console controller 140 has switches 128, 130, 1.
32, a display device (for example, a liquid crystal display, an EL display, etc.) 134, a buzzer 135, a transmission / reception unit 136 to which a transmission / reception unit 138 is connected to the output side, and a control unit 126 to which these are connected. This allows
When an operator or the like operates the switches 128, 130, 132, the control unit 126 and the sending / receiving unit 136 operate, and the operation data is converted into an optical signal by the sending / receiving unit 116 and is emitted.

The general control device 120 controls the optical communication between the above two consoles and the supporting device and other components of the device. That is, the optical signal from each of the consoles is received by the transmitter / receiver 124, and the transmitter / receiver 122
To the control unit 121 via. As a result, the general control device 120 causes the control unit 54 of the support device 7, the control unit 78 of the carriage 5, the control unit 100 of the bed 3 and the control unit 86 of the high voltage generator 14 to perform a predetermined optical signal. To send data.

The general control device 120 may not be provided independently, and the console control unit 118 and the high voltage control unit 86 may have the function of the general control device 120, or the carriage control unit 78 and the supporting device. Controller 54, bed controller 1
00 and the high voltage controller 86 may be configured to directly send and receive data by optical signals.

The transmitting / receiving unit and the transmitting / receiving unit have the functions of the optical / electrical conversion communication unit and the electric / optical conversion communication unit, and are capable of two-way communication. / Only one optical conversion communication means may be used for one-way communication. That is, each component is configured by an open loop type control system, and if there is no need to issue the current operating state signal to the other one-way communication, there is no particular problem. The image receiving means is not limited to the configuration of II and the TV camera. Further, in the example of FIG. 1, each control unit 5 of the support device 7, the carriage 5, the bed 3, and the high voltage generator 14 is used as a control unit as a control target by optical communication.
4, 78, 100, and 86 are illustrated, but a similar control unit may be provided in the display means, the image processing device, and the like (not shown) that are the other constituent elements of the device so that they can be controlled by optical communication. Good.

Next, details of the control by optical communication between the console and each component will be described by taking the case of the movement control of the supporting device 7 as an example. FIG. 2 is a block diagram showing an example of details of a portion related to control of the supporting device 7 in FIG.
Specifically, the support device control unit 54, the console control unit 118,
The details of the overall control device 120 are shown.

In FIG. 2, a control signal from a console (not shown) is sent to the supporting device control section 54 via the general control device 120 to control the operation of the supporting device 7 (see FIG. 5). There is. That is, the control unit 48 of the support device controller 54 includes the MPU 350, the RAM 352, and the ROM 35.
4, I / O 356, 358, 360. The I / O 356 includes the motor (actuator).
30, 32, 34, limit sensors 36, 40, 44,
The origin detection sensors 38, 42, 46 are connected. I
/ O358 via the RS232C driver / receiver 50, which is the transmitter / receiver, to the LED3, which is the transmitter / receiver.
62, 364, 366 and the photodiode 368 are connected. With these, when an optical signal is incident on the photodiode 368, it is demodulated by the RS232C driver / receiver 50 and given to the control unit 48 via the I / O 358, and by this control unit 48, the motors 30, 32, 34 are controlled. By controlling speed and position, I.
Control the position and speed of I.6. The position and speed can be controlled by inputting the signals of the encoders attached to the motor shafts of the motors 30, 32 and 34 to the I / O 356 and controlling them by software in the control unit 48, for example. is there.

Further, the control unit 102 on the console control section 118 side includes an MPU 369, a RAM 372, and a ROM 37.
4, I / O 376, 378. I /
The switches 104, 106, 108, 11 are connected to O378.
0, the display 112 and the buzzer 113 are connected.
To the I / O 376, the LEDs 380, 382 and 384 which are the transmitting / receiving units 116 and the photodiode 3 are provided via the RS232C driver / receiver 114 which is the transmitting / receiving unit.
86 is connected. With these, when an optical signal is incident on the photodiode 386, it is demodulated by the RS232C driver / receiver 114 and given to the control unit 102 via the I / O 376, and this control unit 102 displays predetermined information on the display 112. indicate.
On the other hand, when a signal is sent to another component, that is, the general control device 120, the signal emitted from the I / O 376 is modulated by the RS232C driver / receiver 114, and the optical signals are emitted from the LEDs 380, 382 and 384.

The control unit 121 of the general control device 120 includes an MPU 400, a RAM 402 and a ROM 40.
4 and I / O 406. I / O406
To the LED 40 which is the transmitter / receiver 124 via the RS232C driver / receiver 122 which is the transmitter / receiver.
8, 410, 412 and the photodiode 414 are connected. The overall control device 120 arranges the data from each component and sends the data to the component to be controlled so that each component operates smoothly. For example, when a surgeon or the like operates a support device, calculation is performed so as not to mechanically collide with other elements.

The driver / receiver as the transmitting / receiving unit 50, 114, 122 connected to the I / O 358, 376, 406 is not limited to RS232, but conforms to other standards such as RS432. It may be one.

Next, the operation of the above configuration will be described with reference to FIG. The control unit 48 of the support device controller 54
It controls the position and orientation of II6, but first I.
I.6 position (This position is here the motor 30, 32, 3
4 (corresponding to the rotational angle position of 4) is at the origin by the action of the origin detection sensors 38, 42, 46. These operations are processed by software.

Hereinafter, description will be made step by step. In FIG. 3, in step 1, the control unit of each component (see FIG.
Then power on the control units 48, 102, 121)
I do. In step 2, the communication state is checked. If communication is not possible, the name of the control unit that cannot communicate (including symbols, pictograms, etc.), for example, the name of the control unit 48, is displayed on the display 112 (step 17), and the buzzer sounds. Sound 113 (step 18). After that, the subsequent operation is stopped.

The communication status is checked as follows. In FIG. 2, M of the operation console (operation console control unit 118)
The PU 369 outputs a predetermined signal stored in the ROM 374 to the I
RS232C driver / receiver 1 via / O376
Send to 14. Here the signal is modulated and the LEDs 380,3
It is transmitted as an optical signal from 82 and 384. This optical signal is received by the photodiode 414 of the general control device 120, demodulated by the RS232C driver / receiver 122, and stored in the RAM 402 via the I / O 406. Here, a signal for determining whether or not the predetermined signal stored in the RAM 402 is correct is stored in the ROM 404, and the MPU 400 compares the received signal with the signal stored in the ROM 404 to make a determination. As a result of the comparison,
If the received signal is correct, a signal indicating that communication is possible is performed on the operator console (operator console controller 118) in the reverse order of the above procedure.
Reply to PU369.

However, if the signal indicating that communication is possible does not return even after a lapse of a predetermined time (or if a signal indicating that communication is impossible is received), a signal indicating that state is returned to the MPU 369, and the MPU 369 causes the display 112. The content is displayed in, for example, “There is an obstacle near II. Please move.” And the buzzer 113 is sounded.

Next, such an operation is controlled by the general control device 12
0 and the support device control unit 54, and the communication state is returned to the console control unit 118. Further, the other components are also sequentially performed. If it is confirmed that the communication state with all the components is normal, the process proceeds to step 3.

In step 3, the operation switches 104, 1
06, 108, 110 and operation switches 128, 13
0, 132 (see FIG. 1) is read, and those operation switches 104, 106, 108, 110, 128,
If 130 and 132 are input, the process proceeds to the next step. In step 4, the communication state is checked again, and if communication is impossible, the process branches to the step 9 side. Details of this will be described later. The communication status is checked in the same manner as in step 2.

In step 5, the console (the console controller 1
18) The motor drive signal (control data) of the supporting device 7 (see FIG. 5) corresponding to the operation switches 104, 106, 108, 110 stored in the RAM 372 of 18) is controlled by the supporting device via the general control device 120. RAM of section 54
Send to 352. Specifically, control data such as which one of the motors 30, 32, 34 of the supporting device 7 (supporting device controller 54) is driven, its target position, target speed, etc. is transferred. It should be noted that the target position and the speed are set by the operation switch 10
4, 106, 108, 110 are, for example, joysticks (composed of a lever rotatably supported by a spring and a variable resistor for detecting the rotation angle of the lever), the A / D A converter may be provided and a signal corresponding to the tilt angle may be provided, or if the switch is only an ON / OFF switch, a value may be determined in advance and used.

In step 6, the motors 30, 32, 34 of the supporting device 7 (supporting device controller 54) are driven. Specifically, the MPU 350 fetches current position data from an encoder (not shown) provided on the rotation shafts of the motors 30, 32, 34 via the I / O 356, and the motors 30, 3
The calculation is performed so that 2, 34 are rotated to the target positions stored in the RAM 352. By this calculation, the motor 30,
A control signal is transmitted to the 32 and 34 via the I / O 356 so as to perform a predetermined operation. Generally, I / O356
And the motors 30, 32, 34 between the motors 30,
An amplifier for amplifying the electric power to a level capable of driving 32 and 34 is provided, but the description thereof is omitted here.

In step 7, the states of the limit sensors 36, 40 and 44 of the supporting device 7 (supporting device control section 54) are read into the MPU 350 and the limit is detected (II6 moves to the maximum position within a predetermined operating range). If so, the subsequent operation is stopped. In step 8, the operation switches 104, 106, 108, 1 of the operation console (operation console controller 118)
10 status is read into MPU369, and operation switch 1
If 04, 106, 108, and 110 have been input, the process returns to step 4, and the operations of steps 4 to 8 are repeated.

In step 9, if the communication is impossible in step 4, the process proceeds to step 9 and subsequent steps. In this step 9, 1 is substituted for the variable name n. The value assigned to n is sequentially added in the subsequent steps, and branches to step 11 or later or step 19 or later depending on the added value.

In step 10, if the value assigned to n is less than the constant a, the process branches to step 11.
The constant a is a constant that can be arbitrarily determined, and if the time during which communication is disabled is less than a, the control data interpolation operation from step 11 onward is performed. In step 11, 1 for n
Add.

In step 12, the motor drive signals of the supporting device 7 (see FIG. 5) corresponding to the operation switches 104, 106, 108 and 110 stored in the RAM 372 of the operation console (operation console control unit 118) are summarized. Controller 12
It is sent to the RAM 352 of the supporting device controller 54 via 0. This motor drive signal is interpolated data. Details will be described later. In step 13, the supporting device 7
The motors 30, 32, 34 of the (support device control unit 54) are driven.

In step 14, the states of the limit sensors 36, 40, 44 of the supporting device 7 (supporting device control section 54) are read into the MPU 350, and the limit is detected (II6 moves to the maximum position within a predetermined operating range). If so, the subsequent operation is stopped. In step 15, the operation switches 104, 106, 10 of the operation console (operation console controller 118)
The state of 8, 110 is read into the MPU 369, and if the operation switches 104, 106, 108, 110 are not turned on, the subsequent operation is stopped.

In step 16, the communication state is checked, and if the communication is impossible, the process returns to step 10. When communication is possible, that is, when communication is restored, the process returns to step 5.
In step 19, if the value assigned to the variable n in step 10 has reached a, the communication state is checked,
If communication is not possible, the name of the control unit (including symbols, pictograms, etc.) that cannot communicate, for example, the name of the control unit 48 is displayed on the display 112 (step 19), and the buzzer 11 is displayed.
Ring 3 (step 20). After that, the subsequent operation is stopped.

Next, the interpolation control data (interpolated control data) in step 12 will be described with reference to FIG. FIG. 4 is a graph in which the horizontal axis represents time, that is, the value assigned to the variable n, and the vertical axis represents the speed (or position) data given to the motor. S at a certain time n and s + 1 at the next time.
It is shown that even if the communication is disabled after is substituted, the speed data v3 of s + 2 can be obtained by linear interpolation with s and s + 1. In FIG. 4, the number of data is small for simplification of description, but the number of data to be interpolated may be increased if there is no problem in safety. Further, the interpolation may be performed by a method other than the linear interpolation.

In the above description, the control system has the general control device 120 at the core, but as described above, the general control device 120 is not provided and the general control device 10 is provided for each component.
A distributed control system sharing the two functions may be configured. When the integrated control device 102 is provided, centralized management of control data is easy, whereas the integrated control device 120 is provided.
If not provided, the communication can be performed without passing through the general control device 120, so that it is possible to improve the real-time property and the communication amount by shortening the communication time.

In the above-mentioned embodiment, the display 112 provided on the operation console (operation console control section 118) has been described as an example of the means for displaying the name of the component having the communication failure.
It may be provided separately in addition to the operation console (operation console control unit 118), and the display content is not particularly limited to that of the above-described embodiment. Although the communication failure occurrence notification means for notifying the operator or the like of the communication failure is the buzzer in the above-mentioned embodiment, it may be a siren or a chime, or may be a warning light such as a rotating lamp using light.

In the above-mentioned embodiment, the position control of II6 (control of the supporting device 7 (supporting device control section 54)) has been described as an example, but other components such as the X-ray tube 4 and the high-level device. Voltage control device, top plate 2 (bed control unit 100)
The above-mentioned control can also be applied by performing communication between each control unit and the console in the same manner as described above. Further, as the X-ray apparatus, other than those shown in FIG.
The present invention can be applied to general medical X-ray apparatuses such as a general X-ray fluoroscopic imaging table, a circulatory organ X-ray apparatus, and a CT apparatus.

[0047]

As described above, according to the present invention, between the bed, the X-ray irradiating means, the high voltage control means, the image receiving means, the X-ray irradiating / image receiving means supporting means, the display means, the operation console and the like. When transmitting and receiving control data by optical communication, if the communication status is not normal, it is possible to inform the operator, operator, or assistant of the communication failure status by sound or light, and to identify the component causing the communication failure. It is possible to display, or if the communication failure is for a short time, the control data can be interpolated to continue the operation without trouble, and there is an effect that reliability and safety can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a main part of an embodiment of a device of the present invention.

FIG. 2 is a block diagram showing an example of details of a relevant portion of support device control in FIG.

FIG. 3 is a flowchart showing the operation of the device of the present invention.

FIG. 4 is a graph for explaining an example of control data interpolation in the device of the present invention.

FIG. 5 is a perspective view of a medical X-ray device controllable by optical communication.

[Explanation of symbols]

1 ... Subject, 2 ... Top plate, 3 ... Bed, 4 ... X-ray tube, 5 ...
Carriage, 6 ... II, 7 ... Supporting device, 8 ... Ceiling, 4
8, 72, 80, 94, 102, 121, 126 ... Control unit, 50, 74, 82, 96, 114, 122,
136 ... Sending / receiving section, 52, 76, 84, 98, 11
6, 124, 138 ... Sending / receiving unit, 54 ... Support device control unit, 78 ... Carriage control unit, 86 ... High voltage control unit, 1
00 ... bed control unit, 118 ... console control unit, 120 ...
General control device, 140 ... Proximity console control unit.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Mariko Miyamoto 1-1-1 Uchikanda, Chiyoda-ku, Tokyo Inside Hitachi Medical Corporation

Claims (4)

[Claims] 1. A bed for lying a subject, an X-ray irradiating unit for irradiating the subject with X-rays, an image receiving unit for converting the X-rays transmitted through the subject into an electric signal, and the X-ray irradiating. A support device that integrally or separately supports the image pickup means and the image receiving means, a high voltage generation means that supplies power to the X-ray irradiation means, and a high voltage control means that controls the high voltage generation means.
Display means for displaying an electric signal based on the transmitted X-rays as an image, and one or more operating devices for operating the operation of each component, and two or more of each component are optical. A medical X-ray apparatus comprising a control means having a communication means, characterized in that the medical X-ray apparatus comprises a communication failure occurrence notification means for notifying a communication failure in optical communication by the optical communication means. Line device. 2. The medical X-ray apparatus according to claim 1, wherein the communication failure occurrence notifying means is means for generating at least one of sound and light. 3. The communication failure occurrence notification means comprises a communication failure occurrence component name display means for displaying the device constituent element name in which a communication failure has occurred.
The medical X-ray apparatus according to item 1. 4. A bed for reclining the subject, X-ray irradiating means for irradiating the subject with X-rays, image receiving means for converting the X-rays transmitted through the subject into electric signals, and the X-ray irradiating. A support device that integrally or separately supports the image pickup means and the image receiving means, a high voltage generation means that supplies power to the X-ray irradiation means, and a high voltage control means that controls the high voltage generation means.
Display means for displaying an electric signal based on the transmitted X-rays as an image, and one or more operating devices for operating the operation of each component, and two or more of each component are optical. In a medical X-ray apparatus comprising a control means having a communication means, when a communication failure occurs in the optical communication by the optical communication means, the communication data is interpolated when the communication failure occurs within a predetermined time. A medical X-ray apparatus comprising communication data interpolating means.